Schneider Electric EK1020-1 Electrical Interlock Safety Switch

The Schneider Electric EK1020-1 Electrical Interlock Safety Switch is a field-installable interlock kit designed for 100–200 A E-Series heavy-duty safety switches, enabling a controlled mechanical and electrical interlock between the switch and its guard or enclosure. The "-1" catalog designation indicates a configuration with one normally open and one normally closed contact, and the package includes a 9007A01 limit switch as the interlock sensing element. When installed, the interlock interrupts the control circuit before the main switch blades operate, helping prevent unsafe energization and ensuring the disconnect can only be operated under safe conditions. This kit is intended to complement Square D/SCHNEIDER ELECTRIC safety switches in the E-series family, providing the appropriate interlock functionality for enhanced operator protection during servicing or access to the switch gear. Typical applications include industrial safety installations where sequence control between the guard closure and the main disconnect is required to meet safety standards and reduce the risk of accidental contact with energized components.